MPI/MPFI is a very complex injection system, the control unit of which additionally includes an electronic ignition system.
The control unit for the MPI/MPFI injection system is fully diagnosable. This means that faults that occur during operation are stored in the fault memory, which is only erased when the battery is disconnected.
A special feature is the memorization of even short-term malfunctions. It is known from practice that these are precisely the defects that are extremely difficult to detect.
After 50 engine starts, a fault that occurred only once is erased from the memory of the fault memory.
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